NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-04-20 T23:43:54 PDT
Help | Comment | NED Home

For refcode 2014MNRAS.443.3309M:
Retrieve 17 NED objects in this reference.
Please click here for ADS abstract

NED Abstract

Copyright by Royal Astronomical Society. 2014MNRAS.443.3309M LoCuSS: the near-infrared luminosity and weak-lensing mass scaling relation of galaxy clusters Mulroy, Sarah L.; Smith, Graham P.; Haines, Chris P.; Marrone, Daniel P.; Okabe, Nobuhiro; Pereira, Maria J.; Egami, Eiichi; Babul, Arif; Finoguenov, Alexis; Martino, Rossella Abstract. We present the first scaling relation between weak-lensing galaxy cluster mass, M_WL_, and near-infrared luminosity, L_K_. Our results are based on 17 clusters observed with wide-field instruments on Subaru, the United Kingdom Infrared Telescope, the Mayall Telescope, and the MMT. We concentrate on the relation between projected 2D weak-lensing mass and spectroscopically confirmed luminosity within 1 Mpc, modelled as M_WL is proportional to L_K_^b, obtaining a power-law slope of b=0.83^{+0.27}_{-0.24}_ and an intrinsic scatter of sigma_{lnM_WL|L_K_}_=10^{+8}_{-5}_ per cent. Intrinsic scatter of ~10 per cent is a consistent feature of our results regardless of how we modify our approach to measuring the relationship between mass and light. For example, deprojecting the mass and measuring both quantities within r_500_, that is itself obtained from the lensing analysis, yields sigma_{lnM_WL|L_K_}_=10^{+7}_{-5}_ per cent and b=0.97^{+0.17}_{-0.17}_. We also find that selecting members based on their (J - K) colours instead of spectroscopic redshifts neither increases the scatter nor modifies the slope. Overall our results indicate that near-infrared luminosity measured on scales comparable with r_500_ (typically 1 Mpc for our sample) is a low scatter and relatively inexpensive proxy for weak-lensing mass. Near-infrared luminosity may therefore be a useful mass proxy for cluster cosmology experiments. Key words: gravitational lensing: weak, galaxies: stellar content, infrared: galaxies, cosmology: observations
Retrieve 17 NED objects in this reference.
Please click here for ADS abstract

Back to NED Home